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【简答题】
在统计研究方法体系中,最主要、最基本的研究方法有 ( ) 、 ( ) 、 ( ) 和 ( ) 。
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举一反三
【简答题】Among all the GM crops, Bt genes have proved most effective in ______ when the largest reduction in pesticide use has been reported.
【简答题】一般情况下,Python语言中使用符号( )表示程序中的注释;还有一种使用“......”的特别注释。
【简答题】将所有带删除标记的记录从数据表中彻底删除,称为物理删除,其命令为()
【单选题】— How can you prove that he has something to do with the old man's death? — I have two ______. [ ]
A.
judges
B.
friends
C.
witnesses
D.
facts
【单选题】M: Is that the new laptop you bought last week? It looks very nice. W: Yes, it is. Thanks. I’m just surfing on the Internet. M: Here? In this café? How can you do that? W: The café provides free WiFi....
A.
She can get on the net for free.
B.
She can buy a new laptop.
C.
She can get a cup of coffee for free.
D.
She can provide free WiFi.
【单选题】How can you prove that you are sincere in an apology?
A.
Say sorry in time.
B.
Say sorry and do mean it.
C.
Say sorry and never do the wrong thing again.
D.
Say sorry and constantly repeat it.
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